Shoe-finishing machine.



C. PEASE.

SHOE FINISHING MACHINE.

APPLICATION FILED ocr. 7. I914.

Patented Sept 12, 1916.

l wr/vzssas I 6 6% @WM 53 an srarns rarnir rrrcn CHARLES PEASE, OF SALEM, MASSACHUSETTS, ASSIGNOR TO UNITED-"QPEDITE FINISHING COMPANY, OF BERWICK, MAINE, A CORPORATION OF MAINE.

SHOE-FINISHING MACHINE.

Original application filed August 24;, 1912, Serial No. 716,835.

Specification of Letters Patent.

7, 1914. Serial No. 865,505.

T 0 all whom it may concern:

Be it known that 1, CHARLES Pnnsn, a citizen of the United States, residing at Salem, in the county of Essex and Commonwealth of Massachusetts, have invented certain Improvements in Shoe-Finishing Machines, of which the following description, in connection withthe accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to shoe finishing machines and is herein disclosed as embodied in a machine for burnishing the edges of the heels of boots or shoes.

This application is a division of my application for fshoe finishing machines, Serial 716,835, filed August 21, 1912.

Machines of this character usually comprise a rotary tool having a working face adapted to give the heel edge the desired finish, and a rest positioned for engagement with the tread face of the heel during the finishing operation to aid the operator in properly presenting the heel to the tool. In order to adapt the machine to the re quirements of different sizes andstyles of heels it has been customary to mount the tread rest for adjustment longitudinally of the axis of rotation of the finishing tool, radially toward and from the periphery of the tool, and angularly into different positions of inclination relatively to the plane of rotation of the tool. The constructions heretofore proposed by which these adjustments could be obtained have usually been expensive to manufacture and slow in operation. 7

Accordingly, it is an important object of the present invention to devise a con struction whereby the tread rest can be ad; justed easily and quickly and which furthermore can be cheaply manufactured.

A feature of my invention is a tread rest frictionally held in adjusted position against the ordinary stresses of operation, but movable by substantially greater stresses. The tread rest may thus be placed in a position adapted to a. certain style or size of heel and will remain in'that position until impelled by a force" substantially which illustrate one embodiment of the invention, Figure l is a perspective view of the head of a heel finishing machine, and Fig. 2 is a plan view of a portion of the machine head, certain parts being shown in section.

The machine illustrated in the drawings is provided with a rotary burnishing tool l of a type commonly employed in machines of this character.

This tool is mounted upon the forward end of a shaft 2 ]ournaled 1n bearings 8 on the machine frame.

In order to assist the operator in properly presenting the work to the burnishing tool 1 the machine is provided with a rest 5 arranged to engage the tread face of the work, herein shown as a heel. A split collar 7 which encircles a reduced portion of a hollow cylindrical extension 8 of one of the shaft bearings 3 and is secured in adjusted position by a binding screw 9, 1S

provided with a lateral extension 10 consisting of a fiat plate arranged to support a carrier 11 for the tread rest 5. The carrier 11 is mounted for free movement in a single plane on the extension 10 to permit the tread rest 5 to be adjusted longitudinally of the axis of rotation of the burnishing tool and radially toward and from said axis of rotation. To this end the carrier 11 18 provided with a longitudinal slot 12 through which loosely extends the screw threaded shank of a clamping device 13, said shank being threaded into the extension 10. /V1th this construction the carrier 11 may be movedin a direction-to cause the shank of the clamp 13 to traverse the slot 12 to adjust thetread rest 5 longitudinally of the axis of rotation of the burnishing tool 1, and the carrier 11 may also be swung about the shank as a pivot to adjust the rest 5 radially toward and from the burnishing tool.

In order to clamp the carrier 11 in the desired adjusted position the clamp 13 loosely carries a washer 11 arranged to engage the upper face of the carrier 11. Interposed between the washer 14 and av shoulder 15 formed on the shank of the clamp is a split spring ring 16. The clamp is also provided with a laterally extending handle 17 to enable the operator to rotate it and thereby to clamp the carrier 11 between the extension 10 and the washer 1 1 through the pressure exerted by the spring ring 16. The clamp will be set up so tightly by the handle 17 as to fasten the carrier 11 firmly in place. When it is desired to change the ad j ustment of the carrier 11 the clamp 13 is loosened by the handle 17 to permit such readjustment and then firmly tightened.

in order to permit the angular adjust ment of the tread rest 5 on the carrier 11 to bring the rest 5 into positions of different inclinations to the plane of rotation of the tool the upper end of the tread rest 5 is provided with a shoulder 18 arranged to engage the lower face of the carrier 11 and it also carries a bolt 19 which extends through hole 20 formed in the forward end of the carrier 11. The tread rest 5 is frictionally clamped to the carrier 11 by means of a stiff spring 21 encircling the bolt 19 and maintained normally compressed between the bottom of a recess 22, formed in the carrier 11, and a washer 23 interposed between the spring and the head of the bolt 19. 1V ith this construction the tread rest 5 is normally held in fixed position on the carrier 11, but by inserting a suitable adjusting pin (not shown) into a hole 2% bored in the tread rest 5 the rest may be angularly adjusted into any desired position of inclination to the plane of rotation of the tool. This adjustment will be made without loosening the bolt 19, which will be set up once for all to exert suflicient friction be tween the carrier 11 and the tread rest 5, to hold the tread rest firmly against the stresses resulting from the pressure of heels in the finishing operation. Such pressure will not exert a strong turning moment on the rest 5.

lVhile the invention has been illustrated and explained in its application to a burnishing machine it will be apparent that some of the features of the invention may be embodied in machines for performing other operations upon a shoe. It will also be apparent to those skilled in this class of machines and with the general objects of the present invention in View, that many changes may be made in the details of construction without departing from the spirit of the invention.

The novel wax handling device shown on the drawing is not described or claimed herein, since it is claimed in my parent application Serial No. 716,835, filed August 24., 1912.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A machine for operating upon shoes, having, in combination, a rotary tool, a tread rest carrier, a tread rest mounted thereon, means permitting a movement of the tread rest on the carrier to adjust the tread rest into positions of different inclinations to the plane of rotation of the tool, and a friction device constructed and arranged to hold the tread rest in any desired adjusted position against the ordinary stresses of operation, but permitting it to moveunder greater stresses.

2. A machine for operating upon shoes, having, in combination, a rotary tool, a tread rest carrier, a tread rest, and a pivotal connection between the tread rest and the tread rest carrier whereby the tread rest may be angularly adjusted into positions of different inclinations t0 the plane of rotation of the tool, and a continuously operating friction device for maintaining the tread rest in the selected inclined position, substantially as described.

3. A machine for operating upon shoes, having, in combination, a rotary tool, a tread rest, and a single means constructed and arranged to permit adjustment of the tread rest longitudinally of the axis of retation of the tool and radially toward and from said axis of rotation and hold the tread rest from movement at any desired position of adjustment, substantially as described.

4. A machine for operating upon shoes. having, in combination, a rotary tool, a tread rest, and a single means permitting adjustment of the tread rest longitudinally of the axis of rotation of the tool and radially toward and from said axis of rotation and hold the tread rest from movement at any desired position of adjustment, and additional means permitting angular adjustment of the tread rest into positions of different inclinations to the plane of rotation of the tool, substantially as described.

5. A machine for operating upon shoes, having, in combination, a rotary tool, a tread rest, a tread rest carrier freely movable in a single plane to permit the position of the tread rest to be adjusted longitudinally of the axis of rotation of the tool and radially toward and from said axis of rotation, and a device to hold the carrier from movement at any desired position of adjustment of the tread rest, substantially as described.

6. A machine for operating upon shoes, having, in combination, a rotary tool, a col lar adjustable circumferentially about the axis of rotation of the tool, a carrier movable on the collar longitudinally of said axis of rotation and also radially toward and from said axis of rotation, and a tread rest mounted on the carrier and adjustable thereon into positions of different inclinations to the plane of rotation of the tool, substantially as described.

7. A machine for operating upon shoes, having, in combination, a rotary tool, a collar adjustable circumferentially about the axis of rotation of the tool, a carrier movable on the collar longitudinally of said axis of rotation and also radially toward and from said axis of rotation, atread rest mounted on the carrier and adjustable thereon into positions ofdifierent inclinations to the plane of rotation of the tool, and devices to respectively hold the carrier and tread rest from movement at any desired position of adjustment thereof, substantially as described.

8. In a shoe finishing machine having a rotary tool, a work rest, means for supporting said rest for adjustment longitudinally of the axis of rotation of the tool and toward and from said axis of rotation, and a single means for securing said rest in any adjusted position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES PEASE.

WVitnesses:

' LILLIAN B. DUPEE,

CHESTER E. Rooms.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

